linux-kernel - Re: [PATCH v2 1/6] Add AutoFDO support for Clang build

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Message-ID: <20241004182847.GU18071@noisy.programming.kicks-ass.net>
Date: Fri, 4 Oct 2024 20:28:47 +0200
From: Peter Zijlstra <peterz@...radead.org>
To: Kees Cook <kees@...nel.org>
Cc: Jonathan Corbet <corbet@....net>,
	Nick Desaulniers <ndesaulniers@...gle.com>,
	Rong Xu <xur@...gle.com>, Han Shen <shenhan@...gle.com>,
	Sriraman Tallam <tmsriram@...gle.com>,
	David Li <davidxl@...gle.com>,
	Krzysztof Pszeniczny <kpszeniczny@...gle.com>,
	Alice Ryhl <aliceryhl@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Arnd Bergmann <arnd@...db.de>, Bill Wendling <morbo@...gle.com>,
	Borislav Petkov <bp@...en8.de>, Breno Leitao <leitao@...ian.org>,
	Brian Gerst <brgerst@...il.com>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Heiko Carstens <hca@...ux.ibm.com>,
	"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...hat.com>,
	Jann Horn <jannh@...gle.com>, Josh Poimboeuf <jpoimboe@...nel.org>,
	Juergen Gross <jgross@...e.com>,
	Justin Stitt <justinstitt@...gle.com>, linux-arch@...r.kernel.org,
	linux-doc@...r.kernel.org, linux-kbuild@...r.kernel.org,
	linux-kernel@...r.kernel.org, llvm@...ts.linux.dev,
	Masahiro Yamada <masahiroy@...nel.org>,
	"Mike Rapoport (IBM)" <rppt@...nel.org>,
	Nathan Chancellor <nathan@...nel.org>,
	Nicolas Schier <nicolas@...sle.eu>,
	"Paul E. McKenney" <paulmck@...nel.org>,
	Samuel Holland <samuel.holland@...ive.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Wei Yang <richard.weiyang@...il.com>, workflows@...r.kernel.org,
	x86@...nel.org, "Xin Li (Intel)" <xin@...or.com>,
	Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH v2 1/6] Add AutoFDO support for Clang build

On Fri, Oct 04, 2024 at 11:10:04AM -0700, Kees Cook wrote:

> +Configure the kernel with::(make)
> +
> +     CONFIG_AUTOFDO_CLANG=y
> 
> Then we could avoid the extra 2 lines but still gain the rendered language
> highlights?

The whole double-colon thing is already a pain to read; you're making it
worse again.